<template>
	<div>
		<div class="search">
			<input v-model="keyword" type="text" placeholder="输入城市名或拼音" class="search-input">
		</div>
		<div class="search-content" ref="search" v-show="keyword">
			<ul>
				<li v-for="item of list" :key="item.id"  @click="handleCityClick(item.name)" class="search-item border-bottom">
					{{item.name}}
				</li>
				<li class="search-item border-bottom" v-show="hasNoData">
					没有找到匹配数据
				</li>
			</ul>
		</div>
	</div>
</template>
<script>
import Bscroll from 'better-scroll'
export default{
	name:'CitySearch',
	props: {
		cities:Object
	},
	data () {
		return {
			keyword:'',
			list:[],
			timer: null
		}
	},
	computed:{
		hasNoData (){
			return !this.list.length
		}
	},
	watch: {
		keyword () {
			if (this.timer) {
				clearTimeout(this.timer)
			}
			if (!this.keyword){
				this.list = []
				return
			}
			this.timer =  setTimeout(() => {
				const result = []
				for (let i in this.cities) {
					this.cities[i].forEach((value) => {
						if(value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1){
							result.push(value)
						}
					})
				}
				this.list = result
			},100)
		}
	},
	methods: {
		handleCityClick(city) {
			this.$store.commit('changeCity',city)
			this.$router.push('/')
		}
	},
	mounted() {
		 this.srcoll = new Bscroll(this.$refs.search)
	}
}
</script>
<style lang="stylus" scoped>
@import '~styles/varibles.styl'
	.search
		height:.72rem
		padding:0 .1rem
		background:$bgcolor
		.search-input
			box-sizing:border-box
			height:.62rem
			line-height:.62rem
			width:100%
			text-align:center
			border-radius:.06rem
			color:#666
			padding:0 .1rem
	.search-content
		position:absolute
		overflow:hidden
		top:1.58rem
		right:0
		bottom:0
		z-index:1
		left:0
		background:#eee
		.search-item
			line-height:.62rem
			padding-left:.2rem
			background:#fff
			color:#666
</style>